Senior Staff ll, AI Engineer (L7-2)

The role

You will design, architect, and own the full lifecycle of novel applications centered on generative AI and LLMs. You will develop production AI infrastructure, RAG frameworks, and intelligent software services to create new e-commerce experiences.

What you will do

• Design, architect, and own the full lifecycle of novel, end-to-end applications centered on generative AI and LLMs.
• Develop and manage production AI infrastructure including vector databases, high-throughput inference, and real-time data pipelines.
• Develop and maintain strong RAG frameworks.
• Implement advanced prompt engineering, agentic design, and complex LLM chains.
• Enforce AI reliability, monitoring, and safety.
• Rapidly prototype and productionize new AI capabilities.

Required qualifications

• 3 years of experience in software engineering.
• Solid coding skills and critical code review capabilities.
• Deep specialization in leveraging Large Language Models (LLMs) and Generative AI systems and productivity tools.
• Strong product-led engineering mindset.
• Proven experience owning end-to-end AI applications including Generative AI agents, conversational interfaces, RAG pipelines, LLM fine-tuning, and AI-powered automation.
• Demonstrated track record of taking AI-first products from concept to production.
• Deep technical understanding of modern AI stacks including prompt engineering, LLM orchestration frameworks, vector databases, semantic search architectures, and scalable MLOps.

Nice to have

• Experience in high-traffic, large-scale consumer AI environments.
• Experience leading or contributing to cross-functional AI research and product engineering teams.
• Experience building and launching 0→1 Generative AI products or integrating LLMs into existing complex product surfaces.
• Strong background in fast-scaling technology companies.
• Passion for continuous experimentation and rapid prototyping.
• Exposure/experience in ecommerce search.

Benefits

• Medical/Dental/Vision/Life, AD&D insurance
• Flexible Spending Accounts (FSA) & Health Savings Account (HSA)
• Long-term/Short-term Disability
• Employee Assistance Program (EAP) program
• 401K Plan with Company Match
• 18-21 days of the Paid Time Off (PTO) a year based on the tenure
• 12 Public Holidays
• Paid Parental leave
• Pre-tax commuter benefits
• Free Electric Car Charging Station

About the company

Coupang is a fast-growing e-commerce company that is a dominant and reliable force in South Korean commerce and is growing in Taiwan commerce. It offers a startup culture with the resources of a large global public company.